Orb Defender (LD #43)

Orb Defender is a tower defense game with a difference: the source of the power you use to defeat the waves of spawned enemies is the very thing you are trying to protect: the Central Orb. Drag individual orbs from the Central Orb onto a tower to power it up. You can attach multiple orbs to a tower, and doing so will increase the towers attack strength and range. You can then move orbs between towers, or indeed move them back to the Central Orb if need be. To move all orbs attached to a tower, l...